Because of ________ high demand for Type AB blood, ________ supplies of it are u

Because of ________ high demand for Type AB blood, ________ supplies of it are u

题型:不详难度:来源:
Because of ________ high demand for Type AB blood, ________ supplies of it are usually limited.
A.the; theB.不填;不填
C.不填;theD.a; the

答案
D
解析
D 考察冠词。句义:由于对AB血型血液的高需求,它的供应受到限制。第一空表示泛指,第二空特指AB型血型的供应。
举一反三
Don"t touch ________ live wire, or you will get ________ shock.
A.the; the B.the; a
C./; aD./;/

题型:不详难度:| 查看答案
In ________ early 1990"s, as  ________ gesture of appreciation, the library was named after the businessman who donated most of the money with which to build it.
A.the; aB.the; the
C./; the D.an; /

题型:不详难度:| 查看答案
—What about ________ conference you attended last week?
—To tell the truth, it was too boring, you know, ________ conference like that.
A.a; theB.the; /
C.the; aD.the; the

题型:不详难度:| 查看答案
This area experienced ________ heaviest rainfall in     ________ month of May.
A.不填; aB.a ; the
C.the ; theD.the ; a

题型:不详难度:| 查看答案
In________ most countries, a university degree can give you ________ flying start in life.
A.the; aB.the; /
C./;/D./; a

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